Winding machine for textile threads and yarns



2 Sheets-Sheet 1 Au 30 H'. {SCHWEITER WINDTNG-MACHINE FOR TEXTILE THREADS'ANDYARNS Filed Nov. 1.8 1925 a9 3/ Dec. 14 1926.

' Dec. 14 {192 6.

2 Sheets-Sheet H. SCHWEITER WYENDING MACHINE FOR TEXTILE THREADS AND YARNS Flled Nov 178 925 I/IIII/I/IIIII/IIIIIIIIIII/I/II/I/I/IIIl/I j H 7 I V m I I rd w h. [j A E A w h I, rIIl/lll/ V44. 1/ I IIIII -Dec@ 14, 1925.

- warren stares HANS SCIIWEITER, G3? HOHGEN, NEAR, ZURICH, SWITZERLAND.

WINDING MACHINE FOR TEXTILE THREADS AND YARNS.

Application filed November 18,1925, erial No. 69,844, and in Switzerland July 9, 1925.

single pattern to vary the stroke or traverse of the thread guide so as to adapt it to varying length of spools, while at the same'time 'ng the. stroke to be diverted laterally or to. produce a taper at the ends of the 'lmbbins. This is primarily attained by an arrai'igement whereby the teinplate is dis,

placeable in two direct-ions (perpendicular and parallel tethe azris of the thread guide rod; whereby the cooperati ages of the plate and contact finger are arranged at an angle to the directions of motion of the template. The movement of the "emplate in the direction perpendiculan to the axis of the thread guide rod ay be elii'eeted manually by means of set screws or the like, whilst the, movement parallel to the rod axis :is derivec from a reciprocating part of the machine. To this end, the template slideblock has a transverse slot engaging a pin which is mounted eccentrically on a disc adapted to be rotated step by step, and adjustable by the thread guide rod.

The annexed drawings show an example of mechanism according to the invention.

Fig. 1 is a vertical section along the line ww of Fig. 8, v

Fig. 2 is a longitudinal section through the casing and an elevation of the regulator,

Fig. 3 is a plan thereof,

Fig- 1 shows the template in two positions and Fig. shows a completed bobbin.

In the casing 1 two screw spindles of equal pitch are mounted parallel to each other. The screw 3 is driven by the pulley 1. The two screw spindles are in operative connection vith each otherby means of toothed wheels 5 and 6 and consequently rotate in opposite directions. ()n the reciprocating thread guide rod 7, thereis a rotatable but axially immovably mounted carriage 8 carrying the segmental nuts 9. This carriage has an upstanding arm 10 provided with a roller ll which, on moving to and fro, alternately l template.

runs upon inclined surfaces 12 of the tension levers ll, and by swinging the latter about the pins 13 it alternately puts the springs 15 under tension. The spring 15 which for the time being is under tension effects the reversal of the carriage 8 and thus the disengagement of one nut 9 and. the engagementof the other when, after the completion of a stroke of the thread guide,

rarsnrorrics.

theIwedge-shaped contact finger 16 conneeted with the. carriage 8' passes off the respective end of the template 17; 7

If, for example, the carriage 8 moves from the left hand position. (Fig. 3) towards the s right, tension lever ,1-1 is pressed back and the right, hand spring 15 is put' under tension. During movement towards the right contact linger 16 moves along the under side of the templatel 17. When at the end of they movement to the right the contact finger passes off template 17, the ca'riage 8 is reversed by the spring.

15 then under tension and. the contact finger 16 runs on to the upper side of the template 17 The contact finger 16 then runs towards the left and the left-hand spring 15 is then put under tensionand' this spring at the end of the movement to the left again reverses the nuts and again brings the contact finger 16 against the under side of the In order to adapt the length of stroke of the thread guide to the length of the spool and to enable this, stroke to be diverted laterally the following regulator is provided.

On an arm 17 affixed to the casing 1 there 7 the casing, In the arm 18 there is an axially movable thumb screw- 21 provided with a knurled head 22. The template 17 has at its rear end an upwardly extending fork 28 which engages a groove on the hub 2 1 of the screw head 22. By rotating the screw 21 the pattern 17 can be moved forwards and backwards and is secured in position by screws 25 passing through slots of the pattern and screwed into the'slide 20. The 00- operating edges 16 and 17 of the contact finger 16 and template 17 respectively are at an angle to the direction of motion, so that by displacement of the template 17 the length of the path of the finger 16 can be altered. For longer bobbins the pattern 17 is moved forwards, so that the finger 16 remains thereon for a longer period while for short is arranged a dovetail guide 19 in which a slide 20 is adapted to be moved parallel tobobbins it is moved backwards. In Fig. 3 H denotes the longest stroke. By displacement of the template into the broken line position the stroke H is produced.

In the arm 18 there is mounted a vertical shaft 26 with an eccentric pin 27 at its lower end, which engages the transverse groove 28 of the slide 20. On the shaft 26 is fixed a ratchet wheel 29 engaged by a pawl 31 which is fixed to a control arm 80 loosely mounted on the shaft 26. Through a sleeve 30 mounted so as to be rotatable in the arm 80, passes a rod 32 which is jointedly connected with the thread guiding rod 7 and on which are mounted two stops 33, adjustable and adapted to be fixed in po'sition thereon.

On displacement of the thread guide rod 7 the shaft 26 is rotated step by step and the slide 20 with the template 17 is gradually moved to and fro laterally (see Fig. 4:). The stroke is thus diverted laterally at various points so that the bobbin is produced with tapered ends (see Fig. 5). This tapered portion is as regards length dependent upon the eccentricity (a of the eccentric pin 27 5 the total stroke of the thread guide is thus H.+2a.

If it is desired to wind without producing tapered portions, the control wheel 26 is kept stationary, it can then serve for adjusting the stroke between the bobbin wheels. The drive of the shaft 26 can be effected otherwise than by means of teeth and a pawl. The template 17 can readily be replaced by another.

What I claim is:

1. In a regulator for the thread guide of a winding machine, a thread guide rod, and means for reciprocating .the thread guide rod comprising a pair of oppositely rotating spindles, a pair of segmental units adapted to be alternately thrown into and out of engagement with their respective spindles, and means for throwing said nuts into and out of engagement comprising a contact finger, and a template therefor, said template being movable both perpendicular to and parallel to the axis of the thread guide rod.

2. A regulator according to claim 1 in which the cooperating edges of the template and contact finger are oblique to the directions of motion of the template.

8.511 a regulator for the thread guide of a winding machine, a thread guide rod, and means for reciprocating the thread guide rod comprising a pair of oppositely rotat ing spindles, a pair of segmental nuts adapted to be alternately thrown into and out of engagement with their respective spindles, and means for throwing said nuts into and out of engagement comprising a contact finger and a template therefor, manually operable means for moving said template perpendicularly to the axis of the thread guide rod, and means controlled by a reciprocating member of the machine for moving said template parallel to the axis of the thread guide rod.

4. A regulator in accordance with claim 3 in which the means for moving the template parallel to the axis of the thread guide rod comprises a transverse slot in said template, a disc, an eccentric pin on said disc engaging said slot, and a member oscillatable by the thread guide rod for turning saiddisc with a step by step movement.

In testimony whereof the foregoing specification is signed. HANS SCHWEITER.

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